SHORT BLOCK 0R2556 - Caterpillar

Pressure relief valve setting ... 87,9 1,7 kg/cm2 1250 25 PSI1 Torque-spring retaining bolt ... 3,5 0,14 mkg 25 1 lb. ft.2 Spring-check valve ... 6B6663 6B6663 Length-test force applied ... 26,2 mm 1.03 in.Test force ... 0,76 0,04 kg 1.67 .08 lb.Free length after test ... 63,5 mm 2.50 in.Outside diameter ... 17,02 mm .67 in.3 Spring-make-up valve ... 4J4506 4J4506 Length-test force applied ... 35,6 mm 1.40 in.Test force ... 0,3 0,02 kg .68 .05 lb.Free length after test ... 47,0 mm 1.85 in.Outside diameter ... 14,27 0,41 mm .562 .016 in.4 Spring-dump valve ... 5F5559 5F5559 Length-test force applied ... 30,2 mm 1.19 in.Test force ... 3,3 0,3 kg 7.38 .59 lb.Free length after test ... 68,3 mm 2.69 in.Outside diameter ... 11,9 mm .47 in.5 Torque-valve body plugs ... 5,9 mkg 43 lb. ft.6 Spring-pilot valve ... 4F7115 4F7115 Length-test force applied ... 34,0 mm 1.34 in.Test force ... 24,7 1,97 kg 54.45 4.35 lbs.Free length after test ... 42,7 1,5 mm 1.68 .06 in.Outside diameter ... 11,9 mm .47 in.